613227744809 has 2 divisors, whose sum is σ = 613227744810. Its totient is φ = 613227744808.

The previous prime is 613227744781. The next prime is 613227744841. The reversal of 613227744809 is 908447722316.

It is a happy number.

613227744809 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 474992504809 + 138235240000 = 689197^2 + 371800^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-613227744809 is a prime.

It is not a weakly prime, because it can be changed into another prime (613227744109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306613872404 + 306613872405.

It is an arithmetic number, because the mean of its divisors is an integer number (306613872405).

Almost surely, 2^613227744809 is an apocalyptic number.

It is an amenable number.

613227744809 is a deficient number, since it is larger than the sum of its proper divisors (1).

613227744809 is an equidigital number, since it uses as much as digits as its factorization.

613227744809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4064256, while the sum is 53.

The spelling of 613227744809 in words is "six hundred thirteen billion, two hundred twenty-seven million, seven hundred forty-four thousand, eight hundred nine".